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There are no shortage of screencasting and video recording tools on the OS X platform, but your options are a lot more limited when it comes to recording audio. One of the best solutions for recording everything your computer hears is Soundflower, an open-source project that allows you to route your system’s audio through your favourite program. That process just got a whole lot easier thanks to WavTap.

record mac system audio

WavTap is a fork of Soundflower, which means that deep-down it’s a very similar beast that shares much of the same code. The main benefit of using WavTap is that there’s no need for additional recording software, and you can just record straight to file using the default Control+Command+Space keyboard shortcut. You can also control WavTap from the system tray area, simply by clicking the icon and choosing record. Unlike a standard Mac app, WavTap installs as a service and for the moment is in the alpha stage of development. Initial tests look good on 10.8.2 however, with no problems experienced while testing for this short review.

WavTap works in a similar way to a screenshot program, with a handy keyboard shortcut and simple means of control. Hit the keyboard shortcut to start the recording and simply hit it again to end it. WavTap will save your audio to the desktop in raw .WAV format. Another nifty feature is the ability to record sounds retroactively, provided they played within the last 20 seconds. WavTap does this by keeping a buffer of the last 20 seconds worth of system audio, then writing it to file when you decide you want it.


  • Record your Mac’s system audio to file.
  • No need for additional recording software.
  • Handy Control+Command+Space shortcut to start and stop recording.
  • Retroactively record the last 20 seconds of audio.
  • Audio saved in raw, lossless WAV format.

Check out WavTap @ GitHub


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  1. macwitty
    March 26, 2013 at 2:57 pm

    Nice to see Soundflower been used. Very stable and good ground